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Geosynchronization Thread

Bulk Geodata Transfer (BGT) & Geosynchronization (GeoSync)

Thread Architects:Michael Maynard, Jennifer HarneLockheed Martin

Past OGC initiatives devised the Geosynchronization specification, which is approaching final standards status. Testing in a variety of situations has identified the need to prototype synchronization mechanisms involving subsets of the full data set as a critical use case. Transfers under conditions of little or no network connectivity are an important requirement.

These are the main task areas:

Bulk Geodata Transfer: The ability to distribute individual data sets and/or collections of data sets in a consistent manner offline and over networks.

Geosynchronization: Web services and client components to support synchronization and updates of geospatial data across a hierarchical Spatial Data Infrastructure (SDI). OWS-8 enhances the work from OWS-7 to streamline validation scenarios, bootstrap database creation and population, and define query-based subscription mechanisms.

OWS-8 Geosync Team

Geosync Objectives

GeoSync is comprised of 2 subthreads. The GSS/GML/WFS Subthread focuses on data, schema, query and mobile client enhancements. You will get more in depth information about this subthread through demos from CarbonProject, CubeWerx, OpenGeo and GIS.FCU. The FileGeodatabase API subthread focuses on bulk data transfer which Esri and OpenGeo will discuss during their demonstrations.

Sub-threads

- FileGeodatabase API Sub-thread- The API Approach

Showing the transfer of base data from headquarters to the field operations airport. Field Ops will edit and return updated data.

Showing bulk transfer of base data using the WFS and GML approach, and will provide the data to Mobile/disadvantaged clients. Geosync will be used to publish and review edits and support temporal queries.

Geosync Reports and Components

This is a list of the deliverables for the GeoSync thread. These Engineering Reports (ER) and Change Requests (CR) are publicly available, see the Deliverables Page on this website. Most component deliverables are prototypes and may not be available for commercial use. These will all be maintained for at least a few months after the testbed. Contact the relevant participant organization or OGC staff if questions.

Oil Spill Response Scenario

Bulk GeoData Transfer – API Approach

This is a high level overview of the Bulk data transfer process. It shows the steps and flow on how the FGDB API can be accessed by anyone to open, read, and write data. The next three demos illustrate this process in a round-trip example.